摘要
以Y2O3粗粉、Nd2O3、硝酸和氨水为原料,通过共沉淀法制备了Nd∶Y2O3透明陶瓷纳米粉体,利用热重/差热分析(TG/DTA)、红外光谱(FTIR)、粉末X射线衍射(XRD)、透射电镜(TEM)以及能谱分析(EDS)等方法对合成的Nd∶Y2O3纳米粉体进行了表征。结果表明,在前驱物中添加适量SO42-离子能减轻煅烧得到的Nd∶Y2O3纳米粉体粒子的团聚,使Nd∶Y2O3纳米粒子的粒度均匀并呈球形分布。在600～1000℃煅烧3 h所得粉体粒子的粒径在20～40 nm之间,具有较好的分散性。
Nd∶Y2O3 nanopowder for transparent ceramics was synthesized by a co-precipitation method using Y2O3 powders,Nd2O3,nitric acid and aqueous ammonia as raw materials.Nanopowders calcined at different temperatures were characterized by TG/DTA,FTIR,XRD,TEM and EDS techniques.The results indicate that appropriate amount of sulfate ions in the precursor can alleviate the degree of agglomeration of the calcined Nd∶Y2O3 nanopowder.Nd∶Y2O3 nanopowders calcined at 600～1 000 ℃ for 3 h were 20～40 nm in size with well dispersed and narrow distributed spherical morphology.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2008年第7期1137-1141,共5页
Chinese Journal of Inorganic Chemistry
基金
吉林省科技厅发展计划项目(2004-0506-1)资助
作者简介
王能利，男，41岁，副教授，在职博士；研究方向：功能陶瓷材料及应用。
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